After installing both Jekyll and MkDocs, I realized that MkDocs server does not stop working. So I had to figure out a workaround to make my local server listen to Jekyll for my personal webpage. I found out that you can specify the port of the server. To do that, simply start your jekyll server with the command:

bundle exec jekyll serve --port 4001

Now, you can see your webpage on

http://localhost:4001/